Fire

The word ‘firewall’ referred originally to a physical barrier, usually a tall wall erected to contain the spread of fire.  But the word is used most frequently nowadays in relation to computer security.  A firewall is like the customs and immigrations: any data traffic entering or leaving your computer will be checked.

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Top 10 List

Until it has happened to you, and you have spent countless hours trying to fix your computer after being infected by a seemingly harmless email, or hijacked because you clicked on an interesting ad, or had your computer simply stop responding for no apparent reason, you will not understand the frustration that such experiences can cause.

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